SimpleChat - Asyncronous Server/Client

[RudiVisser]

Here's what I called 'SimpleChat' as an example application for (very simple) asyncronous/thread programming.

Complete project is attached. If you're looking for ways to learn from it maybe you could start by letting people set their own names

Server:

using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;

namespace SimpleChatServer
{
    class Program
    {
        public static ManualResetEvent tcpClientConnected = new ManualResetEvent(false);
        public static TcpListener rawServer = null;
        public static Dictionary<string, TcpClient> handles = new Dictionary<string, TcpClient>();
        static void Main(string[] args)
        {
            #region Start Server
            try
            {
                Console.WriteLine("TCP Server: Attempt Connection...");
                rawServer = new TcpListener(IPAddress.Parse("127.0.0.1"), 5020);
                Console.WriteLine("TCP Server: Started");
            }
            catch (Exception e)
            {
                Console.WriteLine("TCP Server [ERROR]: " + e.Message);
                Console.Read();
                Environment.Exit(1);
            }
            #endregion
            #region Accept Clients
            while (true)
            {
                rawServer.Start();
                tcpClientConnected.Reset();
                Console.WriteLine("TCP Server: Waiting...");
                rawServer.BeginAcceptTcpClient(new AsyncCallback(acceptTcpClientCallback), rawServer);
                tcpClientConnected.WaitOne();
            }
            #endregion
        }
        public static void acceptTcpClientCallback(IAsyncResult ar)
        {
            TcpListener listener = (TcpListener)ar.AsyncState;
            TcpClient cli = rawServer.EndAcceptTcpClient(ar);
            Thread acceptThread = new Thread(new ParameterizedThreadStart(clientStart));
            acceptThread.Start(cli);
            tcpClientConnected.Set();
        }
        public static void sendToAll(string msg)
        {
            StreamWriter oSw;
            foreach (TcpClient oCli in handles.Values)
            {
                oSw = new StreamWriter(oCli.GetStream());
                oSw.WriteLine(msg);
                oSw.Flush();
            }
        }
        public static void sendToAll(string msg, string skipMe)
        {
            StreamWriter oSw;
            foreach (KeyValuePair<string, TcpClient> kvp in handles)
            {
                if (kvp.Key == skipMe) continue;
                oSw = new StreamWriter(kvp.Value.GetStream());
                oSw.WriteLine(msg);
                oSw.Flush();
            }
        }
        public static void clientStart(object clien)
        {
            TcpClient cli = (TcpClient)clien;
            StreamReader sr = new StreamReader(cli.GetStream());
            StreamWriter sw = new StreamWriter(cli.GetStream());
            try
            {
                IPEndPoint ipe = (IPEndPoint)cli.Client.RemoteEndPoint;
                Console.WriteLine("New Client: " + ipe.Address + ":" + ipe.Port);
                // Let's set a name
                string name = "Guest " + handles.Count;
                sendToAll("> " + name + " connected.", name);
                handles.Add(name, cli);
                while (true)
                {
                    string read = sr.ReadLine();
                    sendToAll(name + ": " + read, name);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("> Exception: " + e.Message);
                Console.WriteLine("> Exception Source: " + e.Source);
                foreach (string str in e.Data.Values)
                    Console.WriteLine(str);
            }
        }
    }
}

Client:

using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;

namespace SimpleChat
{
    class Program
    {
        static StreamReader sr;
        static StreamWriter sw;
        static TcpClient cli;
        static void Main(string[] args)
        {
            Console.WriteLine("Welcome to SimpleChat");
            cli = new TcpClient();
            cli.Connect(IPAddress.Parse("127.0.0.1"), 5020);
            sr = new StreamReader(cli.GetStream());
            sw = new StreamWriter(cli.GetStream());
            Thread readingThr = new Thread(new ThreadStart(recThread));
            readingThr.Start();
            while (true)
            {
                string toSend = Console.ReadLine();
                sw.WriteLine(toSend);
                sw.Flush();
                Console.WriteLine("You: " + toSend);
            }
        }
        static void recThread()
        {
            while (true)
            {
                string read = sr.ReadLine();
                Console.WriteLine(read);
            }
        }
    }
}